Cone-clutch facing and process of making the same.



A. G. SNIDER.

CONE'CLUTCHFACING AND PROCESSOF MAKING THE SAME. APPLICATION. FILED NOV. 26, 19I5.

Patentml Apr. 25, 1916.

i T 0 all whom it may concern.

ALBERT G. S NIDER, OF INDIANAPGLIS, INDIANA, ASSIGNOR TO HIDE, LEATHER 8c BELTING COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION.

CONE-CLUTCH FACING AND PROCESS OF MAKING THE SAME;

Liihtltddd Specificatiote rs Patent. Pmbrgnfngdl Apr, 25, Jlgjlfib.

Application filed November 26, 1915. Serial No. 63,695.

Be it known that T, ALBERT G. SNIDER, a citizen of the United States, and a resident of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Cone-Clutch Facing and Process of Making the Same; and I do hereby declare that the following is a full, clear, and enact description thereof, reference being had to theaccompanying drawings, in which like letters refer to like parts.

The object of this invention is to improve the smoothness and durability of cone clutch facing and also to render the same to some extent yielding and otherwise satisfactory in operation. Heretofore, cone clutches have usually been faced with leather only,

whichmade the surface of the clutch relatively hard and unyielding and not having the frictional coeliiciency desired. The high quality and character of cone clutch constructions required in automobiles has ren deredtlie improvement herein set forth important and valuable.

The invention consists in making a cone clutch facing with an outer member or surface of leather and securing thereto a lining or inner member of duck or like fabric, and preferably with the longitudinal fibers of the duck or fabric parallel with the lateral edges of the leather portion of the facing.

Tn order to dojthis, the duck or fabric.

should be made orwoven into a strip having the same width as the facing and securing it to the facing without cutting it along the lateral edges at any point. This, however, is practically impossible in making-cone clutch facings unless the duck lining is treated so as to contract one edge thereof sutficiently and uniformly to make it fit straight and smoothly within the leather facing. This is accomplished by stitching the edge desired to. be contracted so that the stitches will hold said edge contracted. f

The resultant facing, therefore, has a rela tively thick lining of fabric with the fibers thereof arrangedto fit flat against the leather portion and the longitudinal fibers being parallel with the edges of the leather portion and not being .cut at any point along the edges so that the lining is intact from end to end and has all of its strength, and equal strength at all points. Said lining is preferably treated with a material for rendering it oil, Water and heat proof. v That makes said facing relatively permanent in character and is sufficiently yielding to give the facing the desired frictional coefliciency.

The fullnature of the invention will be view of .the cone clutch facing. Fig. 2 is a section on the line'22 of Fig. 1, on a larger scale. Fig. 3 is a plan view-of the strip of lining which is stitched or prepared This strip of duck orother material is like a band with the width thereof the same as the width of the leather strip 10 and the length thereof the same as the largest internal periphery of the leather strip 10.

forthe cone clutch facing, the same being centrally broken away. Fig. 4: is'the same Then The next step in the process consists in feeding said duck or fabric strip 11 through a sewing machine and stitching the same near one edge at 12 from end to end and contracting'the strip of fabric along the edge being stitched as it is being fed to the needle of the sewing machine, so as to contract saidstitched edge equally throughout .its entire length and make the strip curved substantiallyas shown in Fig. 4:. The stitch 12 will hold the stitched edge contracted thereafter.

"When thus treated, said strip is placed within the leather strip 10 and glued thereto. Because of the curvature given to the strip 11, it will fit smoothly within the leather strip 10 at all points and the longitudinal fibers of the fabric be parallel with the edges of the leather strip or facing and no longitudinal fibers be cut or raveled at the edges of the facing. If the lining for the conical leather strip 10 were cut curved out of a piece of cloth so" as to fit straight lift V i '1 I tudinal fibers would be cutpoints, so that the edges would ravel and facings would not besatisfactory in machines like. automobiles.

The fabric lining is treated preferably with .paraflin or any suitable material for rendering the same relatively free from the injurious influences ofoil, water and heat which tend to injure and shortenthe life' thereof.-

The invention claimed is: l. A cone clutch facing formed of a leather outer member, and a lining member 'securedthereto consisting of fabric with all of the"longitudinal fibers thereof extending parallel with. the edges of the outer leather member;

2. A cone clutch facing formed of a leather outer member, and a lining member secured thereto consisting of'fabric with all of the longitudinal fibers thereof extending uncut,

for' the full length of said lining.

Y 3. A cone clutch facing formed 'of a conical leather outer'member, and a lining member secured thereto consisting of a strip of fabric contracted along it will fit smoothly within member.v

e 4. A cone clutch facing formed of aconisaid outer leather cal'leather outer member, a liningmember secured thereto consisting of a strip of fabric contracted along one edge so that. it will fit smoothly within said outer leather member, and stitches along said contracted edge member f rfholding its fibers 5.,A cone clutch facing formed of a leather outer member, a lining member secured thereto consisting of fabric with all of the longitudinal fibers thereofextending parallel with the edges of theouter leather member, and material applied to said lining member for protecting the same from the injurious influence of oil, water and heat.

6. The process of making a cone clutch facing, which processconsists in making an at, at least,-two

' endless one edge so that.

thereof extending transversely,

endless strip of leather suitably conical transversely, making a straight fabric with the longitudinal fibers thereof extending uncut for the full length thereof, contracting said strip of fabric along one edge thereof to enable it to fit flatly within said conical ,leather strip,

and securing .said fabric to said strip as a lining with the edges of the fabric and leather strip substantially coterminous. v

7. The process of making-a cone clutch facing, which process consists in making an endless strip of leather suitably conical transversely, making a straight strip of fabric with the longitudinal fibers thereof vextending uncut fo'r the full length thereof, contractingsaid strip of fabric along one edge thereof to enable it to fit flatly within said conical leather strip, stitching said fabric strip throughout its length'along the contracted edge for holding it, in its contracted condition, and securing said fabric to said strip as a lining with'the edges of the fabric and leather strip substantially cot'erminous.

v8. The process of making a cone clutch facing, which process consists in making an strip of leather suitably conical, trimmingthe interior surface thereof so that said strip of leather would be of uniform thickness throughout and securing to said leather strip a lining member which consists of fabric with all of the longitudinal fibers parallel with the edges of the leather strip.

9. The process of making a cone clutch facing, which process consists in making an endless strip of leather suitably conical securing to said leather strip a lining member which consists of fabric with all of the longitudinal fibers thereof extending parallel with the edges of the leather strip, and treating said fabric with material to protect the same from In witness whereof, I have hereunto af- ,fixed my signature.

ALBERT G SNIDER. 

